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Dairy Cattle And Reproduction

Subjects : industries, dairy
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Larger the cow - more milk is produced; smaller the cow - less milk is produced






2. What makes the milk flow through the mammary glands?






3. 16-20 hours






4. Completes uterine growth initiated by estrogen and prepares the uterus for nourishment of developing embryo if pregnancy occurs - supports pregnancy by maintaining quiescent state of reproductive tract and suppresses mating behavior - prevents ovulat






5. (FSH) causes egg to mature in females






6. Birthing process (termination of gestation)






7. Gonadotropic (GnRH) is (FSH and LH). Follical Stimulating (FSH) and Lutinizing Hormone (LH).






8. 265-285 days






9. Cleans and lubricates the urethra ahead of the sperm. (if not - the urine in the urethra has a high salt content and would cause sperm to rupture and die)






10. Contains and regulates the temp of the testes for sperm production






11. Days which have increasing daylight hours

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12. (from Jersey Islands in Great Britain) Smallest cow - least milk - highest butterfat %






13. FEED






14. 1. need to be restricted in amt of grain - 2. no more than 70% of ration can be concentrates. 3. *Acidic acid has to be produced in order for milk synthesis to occur (30% forages)






15. Parturition is controlled by...






16. Important 'landmark' during palpation






17. Can produce 200 calves naturally (~100 bulls) - top 1-2% will grade like him. everything left to chance if no AI performed






18. 19-23 (21) days






19. (male) pushes the testes outward toward the legs for a cool-down off of the body






20. 26 hours after estrus begins






21. (male) definition: duct located outside of the testes. 3 parts: head - body - tail. 4 Functions:concentrate sperm - store sperm - transport sperm - site of sperm maturation. entire process takes ~40-60 days






22. 19-23 (21) days






23. Sperm production






24. 1. visual evaluation - 2. scrotal circumference - 3. penis and prepuce observation - 4. rectal palpation - 5. libido test - 6. semen evaluation






25. Days which have increasing daylight hours

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26. What helps regulate spermatogenesis?






27. Actual heat cycle (period)






28. Important 'landmark' during palpation






29. (male) pushes the testes upward toward the body for warmth or protection






30. Allows extension of penis without fibro-elastic penis






31. ~305 days (altough often longer due to breeding difficulties)






32. 1. brain function - 2. blood flow - 3. willing female






33. Earlier you castrate a male - the easier it is on the animal. the longer you wait - death rates increase






34. Can survive ~7 days in cow. vast majority <48 hours






35. Look for infection - split - and rupture of the penis






36. Larger the cow - more milk is produced; smaller the cow - less milk is produced






37. Prevent the cow from getting an infection from the calve






38. Not under a timeline - cow can not be sold as steak






39. FEED






40. Allows extension of penis without fibro-elastic penis






41. Cleans and lubricates the urethra. secretion is thick - viscous - and very slippery.

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42. 26 hours after estrus begins






43. Milk ~305 days - dry 60 days prior to calving






44. 336 days






45. 1. brain function - 2. blood flow - 3. willing female






46. Microscopic - make sure not sterile - very few bulls are actually tested






47. So when offspring are born - there is more food to be found for energy stores and fat deposits IN THE SPRING






48. Contains and regulates the temp of the testes for sperm production






49. Not being bred back into herd. horses are seasonal breeders vs. cows as anytime breeders






50. 1-2 days







Sorry!:) No result found.

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